]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
usb: cdns3: Add quirk flag to enable suspend residency
authorRoger Quadros <rogerq@kernel.org>
Sun, 28 Jul 2024 16:08:45 +0000 (12:08 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Jan 2025 12:28:29 +0000 (13:28 +0100)
commit6eb9609c8bf0166a130f1e4f495ab96b2f562754
tree2da3b07e53bd242e69cde8431a24611d0d61cdcc
parenta19c6a484417343667b98acb510e3cc5a053089b
usb: cdns3: Add quirk flag to enable suspend residency

[ Upstream commit 0aca19e4037a4143273e90f1b44666b78b4dde9b ]

Some platforms (e.g. ti,j721e-usb, ti,am64-usb) require
this bit to be set to workaround a lockup issue with PHY
short suspend intervals [1]. Add a platform quirk flag
to indicate if Suspend Residency should be enabled.

[1] - https://www.ti.com/lit/er/sprz457h/sprz457h.pdf
i2409 - USB: USB2 PHY locks up due to short suspend

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20240516044537.16801-2-r-gunasekaran@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/cdns3/core.h
drivers/usb/cdns3/drd.c
drivers/usb/cdns3/drd.h